The SteriPEN Pre-Filter filters fits on Nalgene® and wide-mouth water bottles and filters out particulates and debris. When in use, pour water through the durable 40×40 micron screen filter cartridge to fill the bottle.
Fits on to bottles such as Nalgene Wide-mouth models and others using a similar size top. For other size bottle tops see the Fits-All filter
The SteriPEN Pre-Filter removes debris from water. Then you’re ready to purify the water with a SteriPEN UV water purifier so the UV light can effectively destroy the microorganisms in the water.
After filtering, remove the filter cartridge from the Pre-Filter, insert the SteriPEN into the center of the filter, flip the bottle, and agitate the water until the SteriPEN indicates the treatment is complete.
Replacement filter cartridges available.
1. Standard Delivery (3 to 5 Days) £4.50 (FREE when you spend £75 or more)
2. DPD Local Next Working Day from £6.50 (£1.99 when you spend £75 or more)
3. Royal Mail 24 (1-3 Days) £4.50 (£1.99 when you spend £75)
5. Royal Mail Saturday Delivery £8.99
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